Windows Mobile 6.1 has a pretty good bluetooth stack, but unfortunately to access many functions require a trip to the bluetooth settings page. Examples where manual activation is required is Activesync via bluetooth and activating A2DP with some bluetooth stereo receivers.
Bluestarter finally provides an easy way to detect the presence of bluetooth devices in the environment, and allows one to act on the presence of these devices by running an application with specified parameters. The software can be set to run at regular intervals or only when the device is switched on from being suspended.
Examples of how the software can be used is to detect the presence of a bluetooth A2D receiver and run the excellent Teksoft A2DP toggle, which will automatically make an A2DP connection.
Read more about this freeware at the Bluestarter webpage here.